The root sign is a mathematical symbol. The root sign is a symbol used to represent the root operation of a number or an algebra. If a? =b, then A is the n-th root of B or A is the 1/n power of B (n≠0). N-th power handwriting and printing are represented by n √, and the number of roots or algebraic expressions are written in the area surrounded by the left and right √ of the symbol and the lower part of a horizontal part above the symbol, which cannot be out of bounds.

Root number:

The root sign is a mathematical symbol. The root sign is a symbol used to represent the root operation of a number or an algebra. If a? =b, then A is the n-th root of B or A is the 1/n power of B (n≠0).

N-th power handwriting and printing are represented by n √, and the number of roots or algebraic expressions are written in the area surrounded by the left and right √ of the symbol and the lower part of a horizontal part above the symbol, which cannot be out of bounds.

Plus sign:

The plus sign is a mathematical symbol used to represent a positive number or an addition. This symbol is also endowed with rich abstract meaning because of its similarity with other things. The plus sign belongs to the first-level operation.

Minus sign:

The minus sign "-"is an operation symbol of one of the four operations, and it can also mean to remove something from something. At the same time, it also means negative sign. Addition and subtraction are one of the two earliest mathematical operations mastered by human beings.

Multiplication symbol:

163 1 year, the British mathematician William Oughtred expressed two numbers multiplied by "X" for the first time in his book Clavis Mathematicae, which became more and more popular. In the letter 1698 to johann bernoulli on July 29th, Leibniz proposed to use the dot "x" to represent multiplication, in case "x" is confused with the letter "x".

Writing standard:

1, write the root number:

Draw a short diagonal line in the upper right corner of the middle of the grid, and then draw a middle diagonal line to the lower right continuously. For the same stroke, draw a long diagonal line to the upper right continuously, and then draw a horizontal line with moderate length near the top of the grid according to your own needs, which is not enough. (here, I only mainly introduce the order of strokes and writing methods. You can imitate writing according to this article, and it is not mandatory. )

2. Write down the number or formula of the prescription:

The number or algebraic expression of the root is written in the area surrounded by the right side of the V-shaped part on the left side of the symbol and the lower part of a horizontal part above the symbol, and cannot be out of bounds. If the number of roots or algebraic expression is too long, the upper horizontal part must be extended to ensure the coverage of the root number or algebraic expression below.